Automatic winder machine attachment



June 26, 1951 G. PAIT 2,557,995

AUTOMATIC WINDER MACHINE ATTACHMENT Filed June 16, 1949 I 2 Sheets-Sheet 1 Gra 21am Pail June 26, 1951 G. PAIT 2,557,995 AUTOMATIC WINDER MACHINE ATTACHMENT Filed June 16, 1949 2 Sheets-Sheet 2 I9 za "am/mm Pa? Patented June 26, 1951 UNITED S'i'AT TET OFFICE AUTOMATIC WINDER MACHINE ATTACHMENT Lewis, Washington, D. 0.

Application J une 16, 1949, Serial No. 99,513

6 Claims. 1

This invention relates to winding machines, and more particularly to a stop motion attachment therefor.

In winding machines of the type disclosed in Patent No. 1,993,910, issued March 12, 1935, and Patent No. 2,236,992, issued February 11, 1941, means has been provided for lifting the package from the traction roller when the thread or yarn breaks, but no means has been provided for stopprovide a stop means which is automatically operable, to stop the movement of the traversing guide at the same time that the package is lifted from the traction roller or shaft, so that the further 'winding of the thread on the package will begin at the point Where the thread broke.

Another object of this invention is to provide a stop motion means of this kind which can be constructed in the form of an attachment for the traveling winder carriage so as to stop the traverse of the thread guide when the thread breaks without affecting the movement of the carriage.

A further object of this invention is to provide a stop motion attachment of this kind which will I effect the stoppage of the guide traverse by lateral shifting of the carriage so as to thereby move the friction roller for the traverse shaft out of contact with the driving or traction roller, and thereby effect stoppage of rotation of the traverse shaft.

With the above and other objects in view, my invention consists in the arrangement, combination and details of construction disclosed in the drawing and specification, and then more particularly pointed out in the appended claims.

In the drawings,

Figure 1 is a detail front elevation, partly broken away and in section, of a winding device having mounted thereon an attachment constructed according to an embodiment of this invention,

Figure 2 is a sectional view taken on the 2-2 of Figure 1,

Figure 3 is a fragmentary sectional view similar to Figure 2, but showing the attachment in operative position, to stop rotation of the thread guide line traversing shaft,

Figure 4 is a fragmentary sectional view taken on the line 4-4 of Figure 3.

Referring to the drawings, the numeral I 0 designates generally a rotatable shaft which is of the type disclosed in Patent No. 1,993,910, supra, which is termed a traction or drive shaft, and is continuously rotating. A winding carriage generally designated as H is mounted for movement along an L-shaped carriage rail I2. The carriage II is similar to the carriages shown in Patents Nos. 1,993,910 and 2,230,992 supra. It is, therefore, believed that a detailed description of the operation of the carriage l l is unnecessary in this application.

The carriage H is movable along the rail !2, being provided with a roller [4 engaging the upper edge of the rail I2 and also having a pair of spaced rollers l5 engageable with the outer or left side of the rail 12, as shown in Figure 2.

An inner intermediate roller I6 is rotatably carried by a spring-pressed lever or arm H and engages the inner side of the rail l2 so that the carriage can readily move lengthwise along the rail l2 and about that portion of the rail which forms a loop on each of the two lengthwise runs or portions of the rail. The carriage II has mounted at one end thereof a package supporting arm i8 which is swingably carried on a pivot 19 and is spring-urged upwardly so that the spindle 20 and the package carried thereby will be constantly urged away from the traction shaft I 0. The arm I8 is held in a lowered position whereby v the package on the spindle 20 will be held in frictional contact with the traction shaft H} by means of the thread which engages through the traversing guide 2 l.

The guide 2! is movable lengthwise of the carriage H by means of a double threaded shaft 22 having a friction roller 23 mounted on the outer end thereof. The roller 23 is held in frictional contact with the traction shaft M3 by the tension of the spring-pressed roller l 6 which engages the inner side of the rail l2. The package arm l8 has connected with the inner end portion thereof the upper end of an elongated rod 20 which at its lower end is connected to a triangular lever 25 mounted on a pivot 26. The triangular lever 25 includes a roller 21 which is engaged by an elongated spring 23 secured, as at 29, to the opposite end of the carriage H. The spring 28 is of less tension than the tension applied to the package arm 18 for raising this arm so that when the thread or yarn breaks the arm IB will be raised and at the same time link or rod 24 will be raised and the free end of spring 28 will likewise be raised.

In order to provide the means whereby the friction roller 23 will be moved away from the traction shaft 18 so as to stop rotation of the traversing shaft 22, I have provided a roller 3% which is carried by a vertically disposed stub shaft 3!. The stub shaft 3! extends right angularly from a horizontally disposed slide bar 32 which is slidable in a pair of guides 33 and 34 secured to the lower side of the carriage H. The outer end of the rod or bar 32 has fixed thereto a cam member 35 formed with an upwardly and outwardly inclined cam surface 35 confronting the inner edge of the spring 28.

The rod or bar 32 is constantly urged outwardly by means of a spring 37 which is seated at one end in arecess or socket 38 formed in the guide 34 and the opposite end of the spring 31 bears against the inner end of cam 35. The cam 35 is disposed in a position whereby upon upward movement of the free end of the spring 28, the inner edge of this spring will engage the inclined edge 36 of cam 35, thereby forcing the bar or rod 32 inwardly so that roller 36 will contact with the outer side of rail Q2. The pressure of spring 28 is such as to cause the carriage I! to shift laterally or outwardly on the upper surface of rail [2, as shown in Figure 3, to thereby effect disengagement of friction roller 32 with traction shaft It. It will, therefore, be evident that when friction roller 23 is out of contact with traction or drive shaft Ii the guide 21 for the thread will stay in the same position it was in at the time the thread broke, permitting package arm l8 to be raised from the traction shaft W.

In the use and operation of this device, the roller 39 with bar 32, is supported beneath the carriage l I, slidably engaging the guide members 33 and 34 which may be secured in any suitable manner to the bottom of the carriage i l. Spring 28 is secured beneath the carriage and engages roller 2'! of triangular lever 25. When the thread is normal, lever 25 will be in its lowered position and package arm 18 will also be in its lowered position, as shown in Figure 2. The tension of the thread will operate to hold spring-pressed package arm l8 downward until the thread breaks. At this time the spring which urges package arm [8 upwardly will raise this arm to disengage the package on the spindle from traction shaft iii. As package arm 18 is raised, roller 2? will move upwardly with raising of lever 25, thereby raising the free end of spring 28.

When spring 28 is raised, the inner edge of this spring will engage the cam surface 36 of cam 35, thereby moving roller 35 which is normally disengaged from rail i2, toward the rail, and the ressure of spring 28 is such as to effect lateral or outward movement of the carriage with respect to the rail i2. Only a slight outward movement of the carriage ll is necessary to disengage friction roller 23 from traction shaft In. In this manner the guide traversing shaft will be stopped so that guide 2! will remain in the position it was in at the time the thread first broke and package arm it was raised.

I do not mean to confine myself to the exact details of construction herein disclosed, but claim all variations falling within the purview of the appended claims.

What I claim is: 1

1. In combination a winding carriage, a rail movably supporting said carriage, said carriage including spring-pressed rollers holding Said Calriage against lateral movement on said rail, a 1'0- tatable traction shaft, a package arm rockably carried by said carriage and normally springpressed to disengaged position relative to said traction shaft, a guide traverse shaft rotatably carried by said carriage, a friction roller fixed on said traverse shaft and normally engaging said traction shaft, and means including a reciprocable bar mounted on said carriage correlated with said package arm and engageable with said rail for shifting said carriage when said arm is rocked to inoperative position to thereby disengage said friction roller from said traction shaft.

2. In combination a winding carriage, a rail movably supporting said carriage, said carriage including spring-pressed rollers holding said carriage against lateral movement on said rail, a rotatable traction shaft, a package arm rockably carried by said carriage and normally springpressed to disengaged position relative to said traction shaft, a guide traverse shaft rotatably carried by said carriage, a friction roller fixed on said traverse shaft and normally engaging said traction shaft, a bar slidably carried by said carriage, a roller carried by said bar confronting said rail, means normally urging said bar outwardly relative to said rail, a bar operator carried by said carriage and normally biased downwardly to inoperative position, and means correlated with said package arm for moving said operator to thereby effect inward movement of said bar to engage the roller carried thereby with said rail and simultaneously laterally shift said carriage and disengage said friction roller from said traction shaft.

3. In combination a winding carriage, a rail movably supporting said carriage, said carriage including spring-pressed rollers holding said carriage against lateral movement on said rail, a rotatable traction shaft, a package arm rockably carried by said carriage and normally springpressed to disengage position relative to said traction shaft, a guide traverse shaft rotatably carried by said carriage, a friction roller fixed on said traverse shaft and normally engaging said traction shaft, a bar slidably carried by said carriage, a roller carried by said bar confronting said rail, means normally urging said bar outwardly relative to said rail, a bar operator carried by said carriage and normally biased down- Wardly to inoperative position, a cam carried by said carriage engageable with said operator upon upward movement thereof, and means connected with said package arm for moving said operator upwardly upon movement of said package arm to inoperative position to thereby laterally shift said carriage and disengage said friction roller from said traction shaft.

4. In a thread winding carriage movably mounted on a guide rail and having a friction wheel engaging a traction shaft and including a spring-pressed package arm normally biased away from said traction shaft; a stop motion attachment for laterally shifting said carriage to disengage said wheel from said shaft when the thread breaks, said attachment comprising a cam correlated with said package arm, means slidably mounting said cam on said carriage, and a roller connected with said cam engageable with said rail.

5. In a thread winding carriage movably mounted on a guide rail and having a friction wheel engaging a traction shaft for moving the thread traversing guide lengthwise of said carriage, said carriage including a spring-pressed package arm normally biased away from said shaft, and a second spring correlated with the pull on the thread through said traversing guide for holding said arm in operative relation with respect to said shaft; a stop attachment active upon breaking of the thread and raising of said arm from said shaft to laterally shift the carriage to disengage the wheel from said shaft, said attachment comprising a cam member, a slide rod fixed to said cam slidably engaging said carriage, and a roller on said rod engageable with said rail, said cam being disposed in a position to be engaged by said second spring.

6. In combination a thread winding carriage, a rail supporting said carriage, a rotatable traction shaft, a spring pressed package arm carried by said carriage normally biased to inoperative position with respect to said shaft, a rock lever carried by said carriage and connected with said arm, a second spring engaging said lever constantly urging the latter to rock downwardly to hold said package arm in operative relation with respect to said shaft, said latter spring being of less strength than the spring biasing said arm to inoperative position, a thread traverse guide movably carried by said carriage, a friction Wheel connected with said thread guide and engageable with said shaft, the normal pull of the thread passing through said guide and the tension of said second spring overcoming the spring tension of said arm to thereby hold said arm in operative relation relative to said shaft, a depending flange carried by said carriage in confronting position to said rail and having an opening, a cam disposed beneath said carriage in a position to engage said second spring when the latter is moved upwardly by rocking of said lever at the time the thread breaks, a guide rod fixed to said cam and slidably engaging through said opening, and a roller carried by said guide rod engageable with said rail adapted to shift said carriage laterally and disengage said friction wheel from said shaft.

GRAHAM PAIT.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,022,004 Schweiter Apr. 2, 1912 FOREIGN PATENTS Number Country Date 18,531 Great Britain of 1907 

